Yan, Weifang, Zhengrong Liu, and Yong Liang. “Existence of Solitary Waves and Periodic Waves to a Perturbed Generalized KdV Equation”. Mathematical Modelling and Analysis 19, no. 4 (September 1, 2014): 537-555. Accessed February 25, 2025. https://aviation.vgtu.lt/index.php/MMA/article/view/3313.